👤

Answer :

first step to remove brackets

here write them in serial order,

=5x²+3x+4+5x²+5x-1

=5x²+5x²+3x+5x+4-1

=10x²+8x-3

Answer:

If I'm not mistaken your answer should be the third option: 10x2 + 8x + 3

please tell me if im wrong

Step-by-step explanation: